Modified epoxy resin, process for its production, photosensitive resin composition and photsensitive element
OwnerShuuichi Itagaki, Katsunori Tsuchiya +2inventors
InventorsShuuichi Itagaki, Katsunori Tsuchiya, Tetsuya Yoshida, Katsusige Tsukada
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Abstract
A modified epoxy resin containing a repeating unit represented by the following general formula (1): [wherein R1 represents a divalent organic group which is a diglycidyl ether-type epoxy compound residue, R2 represents a divalent organic group which is a dibasic acid residue, R3 represents a hydrogen atom or a group represented by the following general formula (2): (wherein R4 represents an acid anhydride residue), and n represents an integer of 1 or greater].
Claims34
A modified epoxy resin containing a repeating unit represented by the following general formula (1):
- [wherein R1 represents a divalent organic group which is a diglycidyl ether-type epoxy compound residue, R2 represents a divalent organic group which is a dibasic acid residue, R3 represents a hydrogen atom or a group represented by the following general formula (2):
- (wherein R4 represents an acid anhydride residue),
- and n represents an integer of 1 or greater].
A modified epoxy resin represented by the following general formula (3):
- [wherein R1 represents a divalent organic group which is a diglycidyl ether-type epoxy compound residue, R2 represents a divalent organic group which is a dibasic acid residue, R3 represents a hydrogen atom or a group represented by the following general formula (4):
- (wherein R4 represents an acid an hydride residue),
- and n represents an integer of 1 or greater].
A modified epoxy resin obtained by a production process for a modified epoxy resin which comprises
- a first step of obtaining an intermediate product by polymerization reaction between a diglycidyl ether-type epoxy compound and a dibasic acid, and
- a second step of adding an acid anhydride to said intermediate product.
A production process for a modified epoxy resin which comprises
- a first step of obtaining an intermediate product by polymerization reaction between a diglycidyl ether-type epoxy compound and a dibasic acid, and
- a second step of adding an acid anhydride to said intermediate product to obtain a modified epoxy resin.
Dependencies are inferred from the claim text.